Storage-tank.



c. c. FARDONK STORAGE TANK.

APPLICATION FILED FEB. 26, 1916- 7 1,184,673. Patented May23,1916.

CHARLES C. FARDON, OF TULSA, OKLAHOMA.

STORAGE-TANK.

Specification of Letters Patent.

Application 'filed February 26, 1916. Serial No. 80,677.

To all whom it may concern Be it known that I, CHARLES C. FARDON,

a citizen of the United States of America,

and resident of Tulsa, in the county of Tulsa and State of Oklahoma, have invented certain new and useful Improvements in Storage-Tanks, of which the following is a specification.

This invention relates to means for improving the conditions under which crude oil is stored, thesaid invention having for its object the provision of 'a novel roof or cover for the tank, which roof is gasproof, the purpose being to prevent a multiplicity of leaks or vents through which 'gas' furthermore preventing the fluid Y being stored. It is, of course, well known may escape andevaporation or carbonization of that where there is a plurality of leaks, there is greatly increaseddanger or liability of explosions, due. to lightning or other igniting influences whereas in the present invention, it is the purpose to provide a suitable vent to permit the escape of gases while otherwise making the roofleak-proof.

The invention furthermore relates to a method for converting ordinary roofs of storage tanks into leak-proof roofs, so that storage tanks now in common use may be made safe from danger, due to explosions and from Waste due to evaporation of the contents of the receptacle.

With the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed.

In describing the invention in detail, reference will be had to the accompany ng drawings forming part of this specification wherein like characters denote corresponding parts in the several views, and in which Figure 1 illustrates a vertical sectional view of a fragment of a tank with a fragment of a roof thereon; Fig. 2 illustrates a plan view of a fragment of a roof; and Fig. 3 illustrates a view in elevation of, the top 'of the tank and a portion of the roof.

In these drawings fl: denotes the metallic shell or casing of the tank, 5 the ordinary board covering and 6 the metallic sheathing or roofing which is preferably made up from sheets of appropriate size, the joints of which overlap as shown at 7 It is the purpose of the inventor to rearrange the metal sheathing of the roofs now in common use by removing the fastenings at' the joints thereof and applying a roofing cement 8 between the overlapping sections forming the joints so that when the sections of the roof are brought together and the cement is hardened or set between the sections of the roof sheathing, gas tight joints will be formed to accomplish the result stated. It has been found in practice that the mdst effective method for. securing the metallic roofing to the board cover of the tank is by nails 9 extending into the said board cover at an angle of the relation of these parts being well shown in Fig. 1. The metal cover is then covered or coated with .heavy paint, which coating covers the same and preferably projects about three inches on each side so as to preclude the entrance of moisture.

A further means for confining the gas except where the vents are located is to cover the joint between the tank and the roof; this being accomplished by applying preferably a. fabric known as ducking to the roof near its edge and to the tank at the top thereof, the said fabric being continuous from the roof to the tankso that the joint between these two portions of the tank is effectually sealed. The fabric 10 shown in the drawing may be attached to the roof by cement or other known means and it is likewise secured to the outer wall or surface of the tank by cement'or other known means. There is a plurality of metallic strips 11 secured to the outer surface of the tank and electrically connected to the metallic roofing so that these strips form conductors of electricity to carry currents from the roof to the ground. This is particularly advantageous in localities where the tanks are apt to be struck by lightning as thereby static electricity finds its way from the roof to the ground without creating a spark which might ignite the gases and cause explosions.

I have furthermore. provided a meansfor firmly pressing the fabric against the tank,

the same consisting of a binding wire or rod 12 extending around the said tank, the ends of said binding wire being connected by a turn buckle 13 which engages eyes or loops 14 on the ends of the said binding member, the same being effective to bind the fabric as stated closely against the side no Patented May 23, 1916.

of the tank and this fabric is preferably coated with material which will render it impervious to gas or Water.

By this simple and comparatively inexpensive process, tanks now in common use may, as stated, be converted into eflective containers, the change resulting in a saving in that evaporation is prevented and furthermore preventing the liability of loss due to explosions.

I claim- 1. In a storage tank, a receptacle and a roof therefor, a sheathing covering the roof, a fabric engaging the sheathing and extending from the roof to the sides of the receptacle for sealing the joint between the roof and receptacle, and a binding means for binding the fabric against the side of the receptacle.

2. In a metallic storage tank, a recepmeans for binding the fabric against the side of the receptacle.

In testimony whereof, I hereunto afiix my signature in the presence of two witnesses.

CHARLIE C. FARDON. Witnesses:

E. S. SULLIVAN, From A. sooner. 

